{"id":623,"date":"2023-06-16T00:00:00","date_gmt":"2023-06-16T00:00:00","guid":{"rendered":"http:\/\/idlayr-com.stackstaging.com\/2023\/06\/16\/android-dual-sim\/"},"modified":"2025-03-17T16:10:47","modified_gmt":"2025-03-17T16:10:47","slug":"android-dual-sim","status":"publish","type":"post","link":"https:\/\/idlayr.com\/es\/blog\/android-dual-sim\/","title":{"rendered":"Prepoblaci\u00f3n de n\u00fameros de tel\u00e9fono Android para atajar la confusi\u00f3n de la Dual-SIM"},"content":{"rendered":"<h3>Introducci\u00f3n<\/h3>\n<p id=\"\">A la hora de crear una aplicaci\u00f3n m\u00f3vil, especialmente si se trata de una aplicaci\u00f3n de seguridad, lo que se busca es ofrecer a los usuarios la funci\u00f3n m\u00e1s fluida, sencilla y segura posible.<\/p>\n<p id=\"\">\u200d<\/p>\n<p id=\"\">Pedir a los usuarios que introduzcan su n\u00famero de tel\u00e9fono es una forma ideal y sencilla de asignar una identidad digital en el m\u00f3vil, pero puede presentar varias posibilidades de problemas. Por ejemplo, el usuario podr\u00eda introducir un c\u00f3digo de pa\u00eds incorrecto, escribir mal su n\u00famero de tel\u00e9fono o introducir un n\u00famero de tel\u00e9fono completamente falsificado.<\/p>\n<p id=\"\">\u200d<\/p>\n<p id=\"\">Otro problema relacionado puede ocurrir si est\u00e1s implementando la autenticaci\u00f3n silenciosa en tu aplicaci\u00f3n y tu usuario tiene m\u00e1s de una SIM en su tel\u00e9fono. Para que la autenticaci\u00f3n silenciosa funcione, es importante que el usuario introduzca el n\u00famero de tel\u00e9fono asociado a la conexi\u00f3n de datos activa, que procede de una \u00fanica SIM.<\/p>\n<p id=\"\">\u200d<\/p>\n<p id=\"\">En esta entrada de blog, ver\u00e1s c\u00f3mo puedes a\u00f1adir la recuperaci\u00f3n autom\u00e1tica del n\u00famero de tel\u00e9fono en una aplicaci\u00f3n m\u00f3vil Android. Tambi\u00e9n podr\u00e1s determinar qu\u00e9 n\u00famero de tel\u00e9fono pertenece a la tarjeta SIM asociada a la conexi\u00f3n de datos m\u00f3viles.<\/p>\n<p>&nbsp;<\/p>\n<h3>\u00bfC\u00f3mo puedo a\u00f1adir esto a mi aplicaci\u00f3n Android?<\/h3>\n<p id=\"\"><strong id=\"\">Atenci\u00f3n<\/strong>Este c\u00f3digo de ejemplo s\u00f3lo es funcional para Android 10 (29) y superiores. Aunque la funcionalidad existe dentro de las API de Android, puede obtener una respuesta vac\u00eda dependiendo del Operador de Red M\u00f3vil o del dispositivo Android al intentar recuperar su n\u00famero de tel\u00e9fono. Hemos creado este ejemplo de c\u00f3digo para ayudarle a recuperar el n\u00famero de tel\u00e9fono de la tarjeta SIM asociada a la conexi\u00f3n de datos m\u00f3viles activa.<\/p>\n<p id=\"\">\u200d<\/p>\n<p id=\"\">Para empezar, tendr\u00e1 que aplicar la funci\u00f3n <a id=\"\" href=\"http:\/\/IDlayr.com\">IDlayr<\/a> <a id=\"\" href=\"https:\/\/developer.tru.id\/docs\/reachability\">API de accesibilidad<\/a>mediante una solicitud `GET` a la direcci\u00f3n URL `https:\/\/{data_residency}.api.tru.id\/coverage\/v0.1\/device_ip` con un campo <a id=\"\" href=\"http:\/\/IDlayr.com\">IDlayr<\/a> token de acceso que contiene el \u00e1mbito s\u00f3lo como `cobertura`.<\/p>\n<p id=\"\">\u200d<\/p>\n<p id=\"\">Una solicitud correcta dar\u00e1 una respuesta similar a la que se muestra a continuaci\u00f3n:<\/p>\n<p id=\"\">\u200d<\/p>\n<div id=\"\"><\/div>\n<p id=\"\">\u200d<\/p>\n<p id=\"\">Esta solicitud verificar\u00e1 que el Proveedor de Red M\u00f3vil (MNO) que proporciona la conexi\u00f3n de datos m\u00f3viles activa es compatible con la Autenticaci\u00f3n Silenciosa en IDlayr. Tambi\u00e9n le proporcionar\u00e1 el `network_id` y cualquier `network_aliases` asociado con ese MNO, que se puede utilizar para verificar qu\u00e9 n\u00famero de tel\u00e9fono coincide con la conexi\u00f3n de datos.<\/p>\n<p id=\"\">\u200d<\/p>\n<p id=\"\">A continuaci\u00f3n, deber\u00e1 compilar una lista de alias de red, incluyendo el network_id proporcionado en el ejemplo anterior.<\/p>\n<p id=\"\">\u200d<\/p>\n<p id=\"\">A continuaci\u00f3n, comprueba que la aplicaci\u00f3n Android tiene permisos para las dos siguientes:<\/p>\n<p id=\"\">\u200d<\/p>\n<ul id=\"\">\n<li id=\"\">`READ_PHONE_NUMBERS` - Permite el acceso de lectura a los n\u00fameros de tel\u00e9fono del dispositivo.<\/li>\n<li id=\"\">`READ_PHONE_STATE` - Da a la aplicaci\u00f3n acceso de s\u00f3lo lectura al estado del tel\u00e9fono, incluyendo la informaci\u00f3n actual de la red celular.<\/li>\n<\/ul>\n<p id=\"\">\u200d<\/p>\n<p id=\"\">Ahora, recupere el Servicio de Abono Telef\u00f3nico para acceder a las funciones `activeSubscriptionInfoList` y `getDefaultDataSubscriptionId`.<\/p>\n<p id=\"\">\u200d<\/p>\n<p id=\"\">Despu\u00e9s de esto, lo que queda es recorrer la lista `activeSubscriptionInfoList` en busca de la informaci\u00f3n de suscripci\u00f3n.<\/p>\n<p id=\"\">\u200d<\/p>\n<p id=\"\">Si el ID de informaci\u00f3n de suscripci\u00f3n coincide con el `getDefaultDataSubscriptionId`, compruebe que el ID de alias de red (de la API de accesibilidad) coincide con la cadena de suscripci\u00f3n compilada del c\u00f3digo de pa\u00eds m\u00f3vil y el c\u00f3digo de red m\u00f3vil (`mccString$mncString`).<\/p>\n<p id=\"\">\u200d<\/p>\n<p id=\"\">A continuaci\u00f3n se muestra un ejemplo completo para Android de esta funcionalidad:<\/p>\n<p id=\"\">\u200d<\/p>\n<div id=\"\"><\/div>\n<p id=\"\">\u200d<\/p>\n<h3>Entonces, \u00bfc\u00f3mo ayudar\u00e1 esto a mi problema relacionado con los usuarios de Dual SIM?<\/h3>\n<p id=\"\">Al recuperar el ID de la ranura de datos predeterminada, puede comparar este ID con los ID de alias de red devueltos por el MNO a trav\u00e9s de la API de Reachability de IDlayr, que se realiz\u00f3 a trav\u00e9s de una conexi\u00f3n de datos celulares desde ese dispositivo. Una vez realizada la comparaci\u00f3n, puede recuperar el n\u00famero de tel\u00e9fono de la tarjeta SIM relacionada con el ID de la ranura de datos predeterminada y volver a rellenarla.<\/p>\n<p id=\"\">\u200d<\/p>\n<p id=\"\">Esto elimina la necesidad de que el usuario introduzca el n\u00famero de tel\u00e9fono, ya que probablemente querr\u00e1 introducir el n\u00famero no relacionado con la conexi\u00f3n de datos activa.<\/p>\n<p id=\"\">\u200d<\/p>\n<p id=\"\">Ayudar\u00e1 a reducir los n\u00fameros de tel\u00e9fono introducidos de forma incorrecta o malintencionada, evitando una mala experiencia de usuario, intentos de suplantaci\u00f3n de identidad o incluso <a id=\"\" href=\"https:\/\/idlayr.com\/es\/blog\/fraude-por-bombeo-de-sms\/\">Ataques de bombeo de SMS<\/a>.<\/p>\n<p id=\"\">\u200d<\/p>\n<p id=\"\">Para ver un ejemplo pr\u00e1ctico completo de c\u00f3mo ejecutar una comprobaci\u00f3n de la API de Reachability, rellenar previamente el n\u00famero de tel\u00e9fono con la conexi\u00f3n de datos m\u00f3viles activa y, a continuaci\u00f3n, ejecutar una comprobaci\u00f3n del <a id=\"\" href=\"http:\/\/IDlayr.com\">IDlayr<\/a> <a id=\"\" href=\"https:\/\/developer.tru.id\/docs\/phone-check\/integration\">PhoneCheck<\/a>hemos creado un <a id=\"\" href=\"https:\/\/github.com\/tru-ID\/app-example-android\">Repositorio GitHub.<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>\u00bfSus usuarios tienen doble SIM? Aprenda a determinar autom\u00e1ticamente el n\u00famero de tel\u00e9fono correcto para que la autenticaci\u00f3n silenciosa pueda continuar sin problemas.<\/p>","protected":false},"author":16,"featured_media":1899,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[56],"tags":[62],"class_list":["post-623","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tech","tag-tru-id"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.6 (Yoast SEO v28.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Prepopulating Android phone numbers to tackle Dual-SIM confusion<\/title>\n<meta name=\"description\" content=\"Avoid dual SIM issues in Silent Authentication for your Android mobile app. Developers can automatically retrieve the phone number to determine the active SIM card.\" \/>\n<meta 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